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A number sign (#) is used with this entry because pachyonychia congenita-4 (PC4) is caused by heterozygous mutation in the KRT6B gene (148042) on chromosome 12q13. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). For a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita.
Pachyonychia congenita (PC) is a rare genodermatosis predominantly featuring painful palmoplantar keratoderma, thickened nails, cysts and whitish oral mucosa. Epidemiology The prevalence is not known but approximately 1000 patients have been registered to date worldwide. Clinical description PC presents clinically as a spectrum of conditions. PC onset is variable with most cases manifesting soon after birth, others becoming clinically apparent only in late childhood and rarely in adulthood. The first signs of the disease usually are thickened nails or neonatal teeth.
Pachyonychia congenita (PC) is a rare inherited condition that primarily affects the nails and skin. The fingernails and toenails may be thickened and abnormally shaped . Affected people can also develop painful calluses and blisters on the soles of their feet and less frequently on the palms of their hands ( palmoplantar keratoderma ). Additional features include white patches on the tongue and inside of the mouth (leukokeratosis); bumps around the elbows, knees, and waistline (follicular hyperkeratosis); and cysts of various types including steatocystoma. Features may vary among affected people depending on their specific mutation.
For a phenotypic description and a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Inheritance Chong-Hai and Rajagopalan (1977) suggested autosomal recessive inheritance of pachyonychia congenita in a 4-year-old Malaysian girl with first-cousin parents, although they recognized new dominant mutation as a possibility. See also Sivasundram et al. (1985). INHERITANCE - Autosomal recessive HEAD & NECK Mouth - No oral leukoplakia SKIN, NAILS, & HAIR Skin - Horny papules (face, leg, buttocks) - No palmoplantar hyperkeratosis - No hyperhidrosis Nails - Episodic inflammatory swelling of nail bed - Recurrent shedding of nails - Hard,thickened nails (pachyonychia) - Subungual hyperkeratosis MISCELLANEOUS - See also pachyonychia congenita, type 3 (PC1, 167200 ) ▲ Close
A number sign (#) is used with this entry because pachyonychia congenita-3 (PC3) is caused by heterozygous mutation in the keratin-6a gene (KRT6A; 148041) on chromosome 12q13. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). For a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita.
A number sign (#) is used with this entry because of evidence that pachyonychia congenita-2 (PC2) is caused by heterozygous mutation in the KRT17 gene (148069) on chromosome 17q21. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). For a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita.
A number sign (#) is used with this entry because pachyonychia congenita-1 (PC1) is caused by heterozygous mutation in the keratin-16 gene (KRT16; 148067) on chromosome 17q21. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita. PC type 1, the Jadassohn-Lewandowsky type, shows oral leukokeratosis.
In Dogger Bank itch, sensitivity is acquired after repeated handling of the sea chervils that become entangled in fishing nets. [ citation needed ] The specific toxin responsible for the rash was determined to be the sulfur -bearing salt (2-hydroxyethyl) dimethylsulfoxonium chloride.  This salt is also found in some sea sponges and has potent in vitro activity against leukemia cells.  Treatment [ edit ] A study of two cases in 2001 suggests that the rash responds to oral ciclosporin . ... The sea chervil, abundant in the area, frequently came up with the fishing nets and had to be thrown back into the water. ... Andrews' Diseases of the Skin: clinical Dermatology . Saunders Elsevier. ISBN 978-0-7216-2921-6 . ^ Bonnevie, P. (1948). ... Comparative Biochemistry and Physiology B . 128 (1): 27–30. doi : 10.1016/S1096-4959(00)00316-X . CS1 maint: multiple names: authors list ( link ) ^ a b Bowers PW, Julian CG., PW; Julian, CG (2001).
The chalky grayish-white particles within the tumor mass correspond to foci of cartilage on histology; the semi-translucent membrane covering the lens in some tumors corresponds to spreading neoplastic cells.   Tumor cells form a characteristic diktyomatous pattern, with folded cords and sheets resembling a fisherman's net.  In early development of the retina, the medullary epithelial cells acquire polarity, such that a basement membrane associated with the vitreous forms the internal limiting membrane on one side, while terminal bars form the outer limiting membrane on the other side. ... American Journal of Ophthalmology . 130 (3): 364–366. doi : 10.1016/S0002-9394(00)00542-0 . ^ a b c d e Vajaranant, Thasarat S.; Mafee, Mahmood F.; Kapur, Rashmi; Rapoport, Mark; Edward, Deepak P. ... American Journal of Ophthalmology . 133 (6): 841–843. doi : 10.1016/S0002-9394(02)01432-0 . ^ Janss, Anna J.; Yachnis, Anthony T.; Silber, Jeffrey H.; Trojanowski, John Q.; Lee, Virginia M.
Medulloepithelioma of the central nervous system is a rare, primitive neuroectodermal tumor characterized by papillary, tubular and trabecular arrangements of neoplastic neuroepithelium, mimicking the embryonic neural tube, most commonly found in the periventricular region within the cerebral hemispheres, but has also been reported in brainstem and cerebellum. It usually presents in childhood with headache, nausea, vomiting, facial nerve paresis, and/or cerebellar ataxia, and typically has a progressive course, highly malignant behavior and poor prognosis. Hearing and visual loss have also been observed.
Medulloepithelioma Histopathology of medulloepithelioma showing characteristic neural tube like strands. Specialty Neurosurgery , oncology Medulloepithelioma is a rare, primitive, fast-growing brain tumour thought to stem from cells of the embryonic medullary cavity .  Tumours originating in the ciliary body of the eye are referred to as embryonal medulloepitheliomas,  or diktyomas .  A highly malignant undifferentiated primitive neuroepithelial tumour of children, medulloepithelioma may contain bone , cartilage , skeletal muscle , and tends to metastasize extracranially.  Contents 1 Signs and symptoms 2 Diagnosis 2.1 Classification 3 Treatment 4 Prognosis 5 Epidemiology 6 References 7 External links Signs and symptoms [ edit ] Medulloepithelioma have been reported to occur in the cerebral hemispheres , brainstem , cerebellum , and peripheral sites .     Due to rapid growth of the tumour, patients typically present with increased intracranial pressure , seizures , and focal neurologic signs .  Diagnosis [ edit ] Neuronal differentiation, ranging from neuroblasts to ganglion cells, is seen in some medulloepitheliomas. Imaging studies such as Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) can aid diagnosis . Medulloepithelioma appears isodense or hypodense with variable heterogeneity and calcification on non-contrast CT scan, and enhances with contrast.  This radiographical finding is consistent with a primitive neuroectodermal tumour, especially in children.  Blood studies and imaging studies of the abdomen may be used to detect metastases.  Needle aspiration biopsy can be used to aid diagnosis.  Definitive diagnosis requires histopathological examination of surgically excised tumour tissues. Histologically, medulloepithelioma resemble a primitive neural tube and with neuronal, glial and mesenchymal elements.   Flexner-Wintersteiner rosettes may also be observed.  Immunohistochemically , neural tube-like structures are vimentin positive in the majority of medulloepitheliomas.  Poorly differentiated medulloepitheliomas are vimentin negative.
Characteristics [ edit ] Botellón usually begins around 11:00 p.m. and ends around 3:00 a.m. when many people move to a bar or club. ... Since botellón is usually a nighttime activity, Spain passed a law that prohibits stores to sell alcohol to the public after 10:00 p.m, hoping to persuade people to attend clubs or bars where alcohol must remain on site. [ citation needed ] However, the measure is a controversial one because people can still buy alcohol before the selling limit hour and consume it in public. ... One example of a macro-botellón was on 17 March 2006, "Half of Spain [met] on the net to organize a macro-botellón".  The macro-botellón was organized in cities around Spain, such as Madrid, Barcelona, Sevilla, Oviedo, Murcia, Vitoria, Málaga, Córdoba, Granada, and Jaén.  One of the purposes of the macro-botellón on 17 March 2006, near the Faro de Moncloa in Madrid, Spain, was to protest against the municipal restrictions on drinking alcohol in the streets. ... CS1 maint: archived copy as title ( link ) ^ "Media España se cita en la Red para celebrar un macrobotellón el 17 de marzo" . 2006-03-07. ^ http://www.20minutos.es/noticia/97295/0/macrobotellones/ciudades/espana/ | Literally translated from Spanish ^ "El Ayuntamiento "no consentirá" el macrobotellón que se prepara en Moncloa" . 2006-03-07.
. ^ "Deaths in the district of Inveresk and Musselburgh in the County of Edinburgh" . Statutory Deaths 689/00 0032 . ScotlandsPeople . Retrieved 11 April 2015 . External links [ edit ] Classification D ICD-O : 8011/0, 8011/3 Wikimedia Commons has media related to Epithelioma .
Lippincott Williams & Wilkins. pp. 254–256. ISBN 0-7817-3905-5 . ^ a b c d e f g h i Smith, Melanie N. (2006-05-10). ... Cambridge University Press . p. 77. ISBN 1-900151-51-0 . ^ Papadakis, Maxine A.; Stephen J. ... McGraw-Hill Professional. p. 60. ISBN 0-07-145892-1 . ^ a b Bosze, Peter; David M. ... Informa Health Care. p. 66. ISBN 963-00-7356-0 . ^ "Cervical Polyps" (PDF) .
Clin Dermatol . 19 (1): 69–71. doi : 10.1016/S0738-081X(00)00215-7 . PMID 11369491 . ^ "Drugs that call for extra caution. ... New York: Simon Schuster. p. 56. ISBN 978-0-684-87309-1 . ^ M.d. Kamath, Bob (30 May 2007). ... Kendall Hunt Publishing. p. 25. ISBN 978-0-7872-8701-6 . ^ Ashton CH (2002).
A rare photodermatosis characterized by the development of pruritic or painful vesicles in a photodistributed pattern in response to sunlight exposure. The lesions heal with permanent varioliform scarring. Ocular involvement, deformities of ears and nose, or contractures of the fingers may occasionally be observed. Systemic signs and symptoms are absent. The condition typically occurs in childhood and regresses spontaneously in adolescence or young adulthood.
Retiform parapsoriasis Specialty Dermatology Retiform parapsoriasis is a cutaneous condition, considered to be a type of large-plaque parapsoriasis .  It is characterized by widespread, ill-defined plaques on the skin, that have a net-like or zebra-striped pattern.  Skin atrophy , a wasting away of the cutaneous tissue , usually occurs within the area of these plaques.  See also [ edit ] Parapsoriasis Poikiloderma vasculare atrophicans List of cutaneous conditions References [ edit ] ^ a b Lambert WC, Everett MA (Oct 1981). ... St. Louis: Mosby. ISBN 1-4160-2999-0 . External links [ edit ] Classification D ICD - 10 : L41.5 ICD - 9-CM : 696.2 v t e Papulosquamous disorders Psoriasis Pustular Generalized pustular psoriasis ( Impetigo herpetiformis ) Acropustulosis / Pustulosis palmaris et plantaris ( Pustular bacterid ) Annular pustular psoriasis Localized pustular psoriasis Other Guttate psoriasis Psoriatic arthritis Psoriatic erythroderma Drug-induced psoriasis Inverse psoriasis Napkin psoriasis Seborrheic-like psoriasis Parapsoriasis Pityriasis lichenoides ( Pityriasis lichenoides et varioliformis acuta , Pityriasis lichenoides chronica ) Lymphomatoid papulosis Small plaque parapsoriasis ( Digitate dermatosis , Xanthoerythrodermia perstans ) Large plaque parapsoriasis ( Retiform parapsoriasis ) Other pityriasis Pityriasis rosea Pityriasis rubra pilaris Pityriasis rotunda Pityriasis amiantacea Other lichenoid Lichen planus configuration Annular Linear morphology Hypertrophic Atrophic Bullous Ulcerative Actinic Pigmented site Mucosal Nails Peno-ginival Vulvovaginal overlap synromes with lichen sclerosus with lupus erythematosis other: Hepatitis-associated lichen planus Lichen planus pemphigoides Other Lichen nitidus Lichen striatus Lichen ruber moniliformis Gianotti–Crosti syndrome Erythema dyschromicum perstans Idiopathic eruptive macular pigmentation Keratosis lichenoides chronica Kraurosis vulvae Lichen sclerosus Lichenoid dermatitis Lichenoid reaction of graft-versus-host disease This dermatology article is a stub .
Affluenza: How to Be Successful and Stay Sane . Vermilion . ISBN 978-0-09-190011-3 . ^ James, Oliver (2008). The Selfish Capitalist . Vermilion . ISBN 978-0-09-192381-5 . ^ James, Oliver (2007). ... London: Vermilion. p. 344 . ISBN 978-0-09-190010-6 . 1. The mean prevalence of emotional distress for the six English-speaking nations combined was 21.6%. ... (Archive is the same work, but on a different website) Further reading [ edit ] The Circle of Simplicity , Cecile Andrews, ISBN 0-06-092872-7 The Golden Ghetto: The Psychology of Affluence , Jessie H. O'Neill, ISBN 978-0-9678554-0-0 Voluntary Simplicity , Duane Elgin, ISBN 0-688-12119-5 Voluntary Simplicity , Daniel Doherty & Amitai Etzioni, ISBN 0-7425-2066-8 How Much Is Too Much?
The disease has also been reported affecting the commercial salmon fisheries of the United States, Australia, New Zealand, France, Spain, Ireland and Chile.  It was first diagnosed in the summer of 1984/1985 in populations of Atlantic salmon off the east coast of Tasmania and was found to be caused by N. perurans n.sp.  Contents 1 Clinical signs and diagnosis 2 Treatment and control 3 Notes 4 References Clinical signs and diagnosis [ edit ] Symptoms typically begin to appear two months after the fish are transferred from freshwater hatcheries to open net sea cages.  Symptoms include mucus build-up on the gills of infected fish and hyper-plastic lesions, causing white spots and eventual deterioration of the gill tissue. ... searchQuery=amoebic+gill+disease&moduleId=2708303&moduleFilter=&categoryFilter=&startAt=0 [ permanent dead link ] ^ "Neoparamoeba perurans n. sp., an agent of amoebic gill disease of Atlantic salmon (Salmo salar)". ... searchQuery=amoebic+gill+disease&moduleId=2708303&moduleFilter=&categoryFilter=&startAt=0 [ permanent dead link ] ^ https://www.int-res.com/articles/dao/25/d025p023.pdf ^ http://eafp.org/display/Search?searchQuery=amoebic+gill+disease&moduleId=2708303&moduleFilter=&categoryFilter=&startAt=0 [ permanent dead link ] References [ edit ] Amoebic Gill Disease Wikivet .
Clinical Features Lisch et al. (1992) described 5 family members and 3 unrelated patients (4 males, 4 females), aged 23 to 71 years, with bilateral or unilateral, gray, band-shaped, and feathery opacities that sometimes appeared in whorled patterns. Retroillumination showed that the opacities consisted of intraepithelial, densely crowded, clear microcysts. Light and electron microscopy disclosed diffuse vacuolization of the cytoplasm of epithelial cells in the affected area. Visual acuity was so reduced in 3 patients that abrasion of the corneal epithelium was performed. The corneal abnormalities recurred within months, with the same reduction in visual acuity as before.
Lisch epithelial corneal dystrophy (LECD) is a very rare form of superficial corneal dystrophy characterized by feather-shaped opacities and microcysts in the corneal epithelium arranged in a band-shaped and sometimes whorled pattern, occasionally with impaired vision. Epidemiology Exact prevalence of this form of corneal dystrophy is not known but very few cases have been reported to date. LECD has been documented in one German family and in rare sporadic cases in Germany and the USA. Clinical description Lesions generally develop in childhood. Epithelial opacities are slowly progressive and painless blurred vision sometimes occurs after 60 years of age. Etiology The exact cause is unknown but appears to be genetic. The gene related to Lisch epithelial corneal dystrophy has been mapped to the short arm of the X chromosome (Xp22.3).
They are due to elevated cytosolic calcium concentrations, classically seen with digoxin toxicity.   The overload of the sarcoplasmic reticulum may cause spontaneous Ca 2+ release after repolarization, causing the released Ca 2+ to exit the cell through the 3Na + /Ca 2+ -exchanger. This results in a net depolarizing current. The classical feature is Bidirectional ventricular tachycardia . ... Neuroscience. ^ Katzung, B: Basic and Clinical Pharmacology (10th ed.), chapter 14: "Agents Used in Cardiac Arrhythmias", The McGraw-Hill Companies, 2007, ISBN 978-0-07-145153-6 ^ Lilly, L: "Pathophysiology of Heart Disease", chapter 11: "Mechanisms of Cardiac Arrhthmias", Lippencott, Williams and Wilkens, 2007 This article about a medical condition affecting the circulatory system is a stub .
The Lancet . 156 (4011): 89–95. doi : 10.1016/S0140-6736(00)65681-7 . ^ Weisse, Martin E (31 December 2000). ... The Lancet . 357 (9252): 299–301. doi : 10.1016/S0140-6736(00)03623-0 . PMID 11214144 . S2CID 35896288 . ^ Powell, KR (January 1979). ... The Journal of Pediatrics . 78 (6): 958–67. doi : 10.1016/S0022-3476(71)80425-0 . PMID 4252715 . ^ Morens, David M; Katz, Alan R; Melish, Marian E (31 May 2001). ... The Lancet . 357 (9273): 2059. doi : 10.1016/S0140-6736(00)05151-5 . PMID 11441870 . S2CID 35925579 .
A rare staphylococcal toxemia caused by epidermolytic toxins of Staphylococcus aureus and characterized by the appearance of widespread erythematous patches, on which large blisters develop. Upon rupture of these blisters, the skin appears reddish and scalded. The lesions typically begin in the face and rapidly expand to other parts of the body. The disease may be complicated by pneumonia and sepsis. It most commonly affects newborns and infants.
With giant hemangiomas in small children, thrombocytopenia and red cell changes compatible with trauma ('microangiopathic hemolytic anemia') have been observed. The mechanism of the hematologic changes is obscure. No evidence of a simple genetic basis has been discovered. Propp and Scharfman (1966) reported a male infant with thrombocytopenia associated with a large hemangioma of the right arm and axilla. The patient had low platelet counts with a markedly diminished platelet survival time and an absence of platelet agglutinin or complement-fixing antibody. Radiochromate-tagged platelet studies suggested sequestration in the hemangioma, liver, and spleen.
Hemangioma thrombocytopenia syndrome is characterized by profound thrombocytopenia in association with two rare vascular tumors: kaposiform hemangioendotheliomas and tufted angiomas . The profound thrombocytopenia can cause life threatening bleeding and progress to a disseminated coagulopathy in patients with these tumors. The condition typically occurs in early infancy or childhood, although prenatal cases (diagnosed with the aid of ultrasonography), newborn presentations, and rare adult cases have been reported.
Kasabach-Merritt syndrome (KMS), also known as hemangioma-thrombocytopenia syndrome, is a rare disorder characterized by profound thrombocytopenia, microangiopathic hemolytic anemia, and subsequent consumptive coagulopathy in association with vascular tumors, particularly kaposiform hemangioendothelioma or tufted angioma.
Hagerstown, MD: Lippincott Williams & Wilkins. p. 1150. ISBN 0-7817-2655-7 . Retrieved 2008-06-16 . ^ a b c d e f Scalea TM (2005). ... Boca Raton: CRC. pp. 26–32. ISBN 978-0-8493-8138-6 . Retrieved 2008-07-06 . ^ a b Porth, Carol (2007). ... Hagerstown, MD: Lippincott Williams & Wilkins. p. 838. ISBN 978-0-7817-7087-3 . Retrieved 2008-07-03 . ^ Pitkänen A, McIntosh TK (2006). ... Neurotrauma: New Insights Into Pathology and Treatment . Elsevier. pp. 13–19. ISBN 978-0-444-53017-2 . Retrieved 2008-06-10 . ^ a b Granacher RP (2007). ... Neuroscience . 101 (2): 289–95. doi : 10.1016/S0306-4522(00)00380-8 . PMID 11074152 . S2CID 20457228 . ^ Sauaia A, Moore FA, Moore EE, et al.
Fitzpatrick's Dermatology in General Medicine (6th ed.). McGraw-Hill. ISBN 0-07-138076-0 . ^ James W, Berger T, Elston D (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. ISBN 0-7216-2921-0 . ^ Pardasani AG, Feldman SR, Clark AR (February 2000). ... Journal of the American Academy of Dermatology . 42 (5 Pt 2): 885–7. doi : 10.1016/s0190-9622(00)90263-9 . PMID 10767696 . ^ Mehlis S (2019).
Guttate psoriasis is a skin condition in which small, red, and scaly teardrop-shaped spots appear on the arms, legs, and middle of the body. It is a relatively uncommon form of psoriasis . The condition often develops very suddenly, and is usually triggered by an infection (e.g., strep throat, bacteria infection, upper respiratory infections or other viral infections). Other triggers include injury to the skin, including cuts, burns, and insect bites, certain malarial and heart medications, stress, sunburn, and excessive alcohol consumption. Treatment depends on the severity of the symptoms, ranging from at-home over the counter remedies to medicines that suppress the body's immune system to sunlight and phototherapy.